Hot-water heating system



A. R.'M. AND 0. LINCKE.

' HOT WATER HEATING S YSTEM.

APPLICATION FILED MAR-30, 192l- PatehtedJune 6,1922.

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f versa.

UNITED STAT, "PATET C .Q.

ALEXANDER RUDOLF MAXIMILIAN IIQINCKE, or ZURICH, AND o'rrorivcxn, v OERLIKON, NEAR ZURICH, SWITZERLAND.

HOT-WATER HEATING sYsr ivr.

Be it known that we, ALEXANDER RUDoLF MAXIMILIAN LINOKE, residing at Seewartstrasse 16, Zurich, and OTTO LINGKE, residing at Oerlikon, near Zurich, Naegelistrasse 8, in the Canton of Zurich and Republicof Swit- .zerland, have inv ted certain new and use ful Improvemen s in Hot-Water Heating Systems, of which the following is a speci fication. a

This invention has for its object to provide an improved hot water heating system, which permits a considerable saving in fuel, requires very little control, and which may operate as a hot water system acting by gravity, or as a heating system for quickly circulating the water without disturbing the gravity action of the heating system.

With the present invention it is not necessary to employ controlling means in the pipes to change the heating system from a normal gravity clrculation heating system into a quick circulation systemand vicesary in the pipes, the accelerated movement of the water in the heating pipes is-solely eifected by setting in motion a prime mover, such as an electric motor, which drives the accelerating device, such as a pump. Then this device is stopped, the gravity circulation of the heating water automatically begins without any disturbance. When the accelerating device is again put in motion the gravity circulation of the heating system automatically changes to quick circulation.

One embodiment of this invention is diagrammatically shown in the accompanying drawing. a p I 1 is a heating vessel or boiler, 2 is the feed pipe leading to the radiators, 3 is the return pipe, lare the radiators and 5 is the expansion vessel of a hot water heating system. In

a separate circulation conduit 6, 8 leading from the top of the heating vessel l to its lower portion, a motor driven accelerating device 7 such as a centrifugal pump 18 arranged. In the said conduit, 6 is the suction pipe or branch and 8 is the pressure pipe or branch. The pressure pipe is connected to the return pipe 8 of theheating con 2; and 3.

As no controlling means are neces Specification of Letters Patent. Patnt'd 11119 6, 1922, Application filed March 80, 1921. Serial N0.,457, 13 8. I

fore, the pressure water of the pressure pipe 8 produces a suction action .on the; return duit and terminate sin aninjector 9. There water of the pipeB by means of the injectorf 9, whereby the flow of the return wateri'n the pipe 3 is'accelerated when desired, and in consequence an accelerated circulation of; the i pipe 3. When rapid circulation however, is desired, the pump 7 is" put in motion and gravity action in the heating con;

through the pipes 2, ra'diators 4: and return this causes the injector 9 to function andgp rjoduce more rapid circulation through the pipes It'will be noted that when the; pump 7 .is stopped, the devicewill fu'nc'tionrfor slow' circulation without manipulating anyvalves, and further the rapid circulation may be secured withoutthe manipulation of any valves. In other words, thesysterm may be automatically convertedzfroma slow feeding to a fast feedingsystem or vice-. versa, by simply starting or stopping the accelerating device. 7.

"What we claim and desire to secure Letters-Patent is A hot water heating system, comprising in combination, a heating conduit including ra-.

diators and a'b oiler, a separate conduit having a suction branch and a pressure. branch, said suction branch being connectedto said boiler, a motor driven accelerating device in? terposed between the branches of the separate conduit, and an injector connecting, the

pressure branch of the separate conduit to" the heating conduit to accelerate the feed of the heating water without destroying the gravity action ofthe water in the'heating conduit. p I In testimony whereof we names to this specification in of two subscribing witnesses.

ALEXANDER RUDOLF MAXlllillLlAl lv LlNCKE'. OTTOLINCKE. 1 i I i Witnesses:

CHR. MILLEEN, HERMANN HUBER.

havesigned our I the presence 

